getting device path or sysfs name of input device

[Peter Hutterer]

On Sun, May 09, 2010 at 09:50:47PM -0700, Alan Coopersmith wrote:
> On 5/9/2010 9:00 AM, John R. wrote:
> >On 05/09/10 08:41, Tias wrote:
> >
> >[snip]
> >
> >>I want to make the calibration permanent, and not just applied when the
> >>program is run.
> >
> >I am not an xorg developer so cannot assist with your technical questions.
> >
> >One of the other options you mention is adding calibration info to a
> >xorg.conf.d file.  It share a common disadvantage with udev method in
> >that it requires write access to files generally written to by root.
> 
> xorg.conf.d will be far more portable than udev though, if you care
> about users of non-Linux kernels such as the BSD's or OpenSolaris.

And we really don't recommend configuring X through udev. If udev rules are
necessary, use them to "tag" devices only. The specific configuration then
goes into the xorg.conf.

Example I'm working on atm:
Some touchpads have a less-than-ideal button positioning. This affects some
specific models so you can use udev (or another config backend) to assign a
"touchpad_overlapping_buttons" tag to those devices.

Then in the xorg.conf, you can match this to whatever specific configuration
you require for this kind of touchpads.

Cheers,
  Peter